Segfaults with Redhat 6.0; gdb crashes too

[Erik Rauch]

I am running redhat 6.0 with egcs 1.1.2-12 and egcs-objc 1.1.2-12
(egcs version 2.91.66). All applications compile but immediately
segfault. Compilation of the apps in swarmapps-1.4 is successful but
gives the following warnings:

>/usr/bin/ld: warning: type and size of dynamic symbol
>`__objc_class_name_SwarmObject' are not defined
>/usr/bin/ld: warning: type and size of dynamic symbol
>`__objc_class_name_ZoomRaster' are not defined 
[...]  
>/usr/bin/ld: warning: type and size of dynamic symbol
>`__objc_class_name_Diffuse2d' are not defined

>address@hidden heatbugs]$ ./heatbugs 
>Illegal instruction (core dumped)

I am asking for help because I have no information to go on; gdb
itself segfaults when I try to use it to find the error:

>address@hidden heatbugs]$ gdb heatbugs 
>GNU gdb 4.17.0.11 with Linux support
>Copyright 1998 Free Software Foundation, Inc.
>GDB is free software, covered by the GNU General Public License, and
>you are welcome to change it and/or distribute copies of it under
>certain conditions.  Type "show copying" to see the conditions.
>There is absolutely no warranty for GDB.  Type "show warranty" for
>details.  This GDB was configured as "i386-redhat-linux"...
>(gdb) run
>Starting program: /home/rauch/swarm/swarmapps-1.4/heatbugs/heatbugs 
>Segmentation fault (core dumped)
>address@hidden heatbugs]$ 

It also refuses to look at the resulting core dump:

>"/home/rauch/swarm/ant/core": not in executable format: File format
>not recognized

My $SWARMHOME and $DISPLAY variables are properly set.


                  ==================================
   Swarm-Support is for discussion of the technical details of the day
   to day usage of Swarm.  For list administration needs (esp.
   [un]subscribing), please send a message to <address@hidden>
   with "help" in the body of the message.